Manfred Riederer (born 1946 in Hallein, Austria) came to Germany in 1963. Like Armin Stähle, he worked as a teacher at the Hohenstaufen Gymnasium from 1975 to 2009. His pictorial motifs are characterised by technical motifs. He tries to make aerodynamics and speed visible. Charcoal and chalk on paper are his preferred painting materials. In our picture, he was taken with the gears in an old clockwork. A wooden construction made of solid beams, strong iron grids, four cogwheels and two perpendiculars, i.e. pendulums of clocks, are the elements he used to build his picture. Slanting traces of colour in black and red are reminiscent of raindrops driven by the wind. They cover the whole picture. Their dabs and splashes overlay the rigid construction and remind us that such clocks were exposed to all kinds of weather at dizzying heights and still functioned precisely.